Shoemaker&#39;s jack.



G. L 0. LAPRTE.

SHOEMAKERS JACK.

APPLICATION HLED MAYa.1912.

1,151,021. Patented Aug. 24,1915.

rien.

GASPARD LAPORTEE AND OCTAVE LAPORTE, :1? GENTERVILLE, RHODE ISLAND.

snoniinxnns JACK.

Spec'cation of Letters Patent.

Patented Aue. 2a, 1915.

Application filed May 3, 1912. Serial No. 694,996.

T 0 all whom t may concern:

Be it lrnown that we, GASPARD LAroRrn and Oo'rnvn Lnronrn, subjects ofthe King of England, and residents of the United States of America,residing at Centerville, in the county of Kent and State of RhodeIsland, hav-e invented certain new and useful Improvements in ShoemakersJacks, of which the following is a specification.

This invention relates to a shoe makers jack and has for its object toprovide a work carrying arm connected by a universal joint to a standardwhereby said arm may be moved and secured in any desired position tofacilitate operation on the work and that without loosening orunfastening the work. And a further object is to provide a base in whichsaid standard is mounted and also to provide readily adjustable means insaid base for -releasably securing said standard therein. And a stillfurther obj ect is to provide an adjustable rest on said standard forsupporting said arm in substantially a horizontal position.

With these and other objects in view, the invention consists 'of certainnovel features of construction, as will be more fully described andparticularly pointed out in the appended claims. f

Of the accompanying drawings: Figure l-is a side elevation of ourAimproved device, partly in section, also `showing another position ofthe wor-lr carrying arm in dotted lines. Fig. 2-is an enlarged viewillustrating the means for tightening the strap over the work to bind itto the last. Fig. 3-is a plan view of the'ball joint illustrating therelative positions of the retaining fingers whereby the work supportingarm is` permitted to be lcarried down in any direction to or even belowa horizontal position. Fig. a-is a plan view of the basev showing thespring operated cam lever which causes the standard to be gripped andretained therein. Fig. 5-is a side elevation of the base in which thestandard may be placed when the operator desires to stand up to hiswork.

Referring to the drawing 1 designates the base which may be made in anydesired or convenient shape or form, that shown in Figs. 1 and 4 beinglow to permit the operator to sit to his work, and comprising anextended rim portion 2 rectangular in shape forming a hollow centeracross which extends a pair of bars 3 loosely held at one end et in theeye member 5 and the opposite endl() being loosely held in the eyemember 3, the center portion being enlarged as at 7 and provided with anopening. at 8 into which the lower end 9 of the standard presentlydescribed is adapted to fit and be retained. These lends 10, see Figs.land 4, are adapted to be pressedy or forced together by means of thecam lever 11 by the pulling action of the spring 1i, -said earn beingpivoted at 12 and provided with an outwardly extending arm 13 which isdesigned to be pressed downward by the foot of the operator when it isdesired t0 release the bars to permit the standard to be turned in thesocket formed between said arms.

The working carrying arm 15 is provided at its upper end with anoutwardly extending tongue 16 which is set on an angle turned slightlybackward toward the heel of the last, as shown in Fig. 1. rlhe lasts 17,of which there is the `usual set, are provided with correspondingapertures for receiving Y saidA tongue whereby the angle of the tongueengaging these lasts hold them absolutely tight and rigid against anypressure which may be brought on the toe portion of the same.

The shoe or worl a is shownin section on the last. In order to bind andsecure this worltto the last we have provided a strap 18 which passesover the same, the opposite ends of the strap being adapted to be wound.simultaneously on the shafts 19 and 20, see Figs. l and 2, whichl shaftsextend transversely through the opening 26 formed in t-he lower portionof the arm 15 and are adapted to be rotated through the hand wheel 21,shaft 22, and gear 23 which latter meshes into the pinions 24 located onsaid shafts l9'and 2O respectively. rllhese gears and shafts are alladapted to be locked against a reverse rotation by means of the pawl 25which engages the teeth of gear 23` until such time as the pawl riswithdrawn.

The lower end of this Aarm is provided with a large ball 27 which setsin the socket formed by -t'he plurality of fingers 28 on the upper endlof the standard 29. One of these fingers 30 is formed free andindependent of the standard and is secured lthereto by means of the bolt31 which passes through the standard and through the lower portion 32 ofsaid finger. rlhe outer end of this bolt is provided with an eye portioninto which the cam 34 is mounted, said cam being provided with a handle35 whereby it may be actuated by hand to cause said finger to bind theball and retain the arm 15 in any desired position. -A nut 36 isprovided on the opposite end of the bolt 31 whereby the binding eect ofthe cam may be adjusted.

A. rest 37 is secured at its lower end 38 by means of the set screw 39to the standard 29 while its opposite end 40 is made in the form of ayoke or fork so that the work carrying arm 15 may be turned down andrest therein when desired.

l/Vhen the operator desires to sitdown to his work the low base 1 isemployed but when he desires to stand up to his work theV higher baseL11 may be employed, in which latter case the lower portion 9 of thestandard 29 may be inserted in the bearing 42 of this high base andreleasably held and bound therein by suitable means such as thatillustrated in Fig. 4; attached to the base 1 whereT by it may bereadily released to be rotated in said bearing when desired.

In operating our improved jack the last is positioned on the tongue 16and the work is positioned on the last. rlhe strap 18 is passed over thework and then by turning the handle 21 both ends of this strap 18 arewound simultaneously on the shafts 19 and 2O and firmly held-intightened position by means of the locking pawl 25, see Fig. 2.

In trimming the edges of the tap after it has been applied to the soleof the shoe, the Shoemaker lpresses downward the handle 35 therebyreleasing the ball 28 in the joint permitting the arm 15 with the workto be drawn over and rest upon his knee or upon the rest member' 37 inwhich position he can rotate this arm on its axis so as to readily getat the edge of the shoe all around the tap.

Another feature of the invention is that the means for holding this ballcomprises long fingers by which construction the arm is permitted to bemoved downward between saidy ngers to any desired angle and if one ofthese fingers should happen to be in the exact position where it isdesired to lower the arm, then it would be only necessary to press thefoot on the lever 13, release the standard and rotatesaid standard tocarry the interfering linger out of the way to permit the lowering ofthe arm into exactly n the position desired.

The device is inexpensive in construction and very practical in itsoperation and by its use the operator may either sit or stand at hiswork, as desired, and by the use of the universal joint kthe work may beswung into any desired position and rotated to Afacilitate operatingthereon.

Ve claim 1. A shoemakers jack comprising a standard, an arm connected atone end with said standard and provided with last engagingV means at theother end, said arm being provided with an opening between its ends,means for retaining said arm at any desired angle with respect to saidstandard, a Hexible binding strap passed around the free end of said armand having its ends in said opening, and means in said opening andextending longitudinally of the last for simultaneously moving both endsof the strap to adjust the tension on'the latter.

2. A shoemakers jackcomprising a standard, an arm connected at one endwith said standard and provided with last engaging means at the otherend, said yarm being provided with an opening between its ends, meansfor retaining said arm at any desired angle with respect to saidstandard, a flexible binding strap passed around the free end of saidarm and having its ends in said opening, parallel winding drumsextending longitudinally of the last located in said opening andconnected with the respective endsof the said strap, and means forsimultaneously actuating said drums. v

3. A shoemakers jack comprising a st andard, a single arm having one endconnected to said standard and provided at its other end with lastengaging-means, asupporting base, clamp bars extending across said baseand embracing the lower end of said standard, a spring for maintaining aclamping pressure on said bars, and a cam lever for releasing saidpressure.

4. A shoemakers jack comprising a standard, a single arm having one kendconnected to said standard and provided atits other end with lastengaging means, a supporting GASPARD LAPORTE. OCTAVE LAPORTE. l

Witnesses:

HOWARD E. BARLow, E. I.y OGDEN.

Copies of this patent may be obtained for vc cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

